// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_BROWSER_RENDERER_HOST_COMPOSITOR_RESIZE_LOCK_AURA_H_
#define CONTENT_BROWSER_RENDERER_HOST_COMPOSITOR_RESIZE_LOCK_AURA_H_

#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "base/time/time.h"
#include "content/browser/renderer_host/resize_lock.h"

namespace aura {
class WindowTreeHost;
}
namespace ui {
class CompositorLock;
}

namespace content {

// Used to prevent further resizes while a resize is pending.
class CompositorResizeLock : public ResizeLock {
public:
    CompositorResizeLock(aura::WindowTreeHost* host,
        const gfx::Size new_size,
        bool defer_compositor_lock,
        const base::TimeDelta& timeout);
    ~CompositorResizeLock() override;

    bool GrabDeferredLock() override;
    void UnlockCompositor() override;

protected:
    void LockCompositor() override;
    void CancelLock();

private:
    aura::WindowTreeHost* host_;
    scoped_refptr<ui::CompositorLock> compositor_lock_;
    bool cancelled_;

    base::WeakPtrFactory<CompositorResizeLock> weak_ptr_factory_;

    DISALLOW_COPY_AND_ASSIGN(CompositorResizeLock);
};

} // namespace content

#endif // CONTENT_BROWSER_RENDERER_HOST_COMPOSITOR_RESIZE_LOCK_AURA_H_
